Picard太阳天体测量卫星
Picard satellite for solar astrometry
摘要：
Picard太阳能卫星于2010年6月15日发射。该飞行任务专门用于测量太阳直径，预期精度为毫弧秒。船上的辐射计是用来测量太阳总辐照度的。最终目标是评价W，半径和光度的对数比。这个参数将帮助气候学家恢复过去的太阳光度值时，半径可从古代日食数据。
英文摘要：
The Picard solar satellite has been launched on June 15, 2010. This mission is dedicated to the measurement of the solar diameter with an expected accuracy of milliarcseconds of arc. The radiometer onboard is to measure the total solar irradiance. The final goal is the evaluation of the W, the logarithmic ratio of radius and luminosity. This parameter will help the climatologists to recover past values of the solar luminosity when the radius is available from ancient eclipses data.
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